[test] Be more verbose when killing hanging tests

TBR=tmrts@chromium.org

Bug: v8:9145,v8:9098
Change-Id: Ib2170819f6d9aa00174fefb6bef4b0a27c11acfc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1578503Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60956}

tools/testrunner/local/command.py

@@ -129,8 +129,12 @@ class BaseCommand(object):
   def _abort(self, process, abort_called):
     abort_called[0] = True
     try:
+      print('Attempting to kill process %s' % process.pid)
+      sys.stdout.flush()
       self._kill_process(process)
-    except OSError:
+    except OSError as e:
+      print(e)
+      sys.stdout.flush()
       pass
 
   def __str__(self):
@@ -207,9 +211,6 @@ class WindowsCommand(BaseCommand):
     return subprocess.list2cmdline(self._to_args_list())
 
   def _kill_process(self, process):
-    if self.verbose:
-      print('Attempting to kill process %d' % process.pid)
-      sys.stdout.flush()
     tk = subprocess.Popen(
         'taskkill /T /F /PID %d' % process.pid,
         stdout=subprocess.PIPE,

tools/testrunner/testproc/progress.py

@@ -136,8 +136,9 @@ class VerboseProgressIndicator(SimpleProgressIndicator):
         output = subprocess.check_output(cmd, shell=True)
         self._print('List of processes:')
         for line in (output or '').splitlines():
-          # Show only command with process info cut off.
-          self._print(line[line.index(OUT_DIR):])
+          # Show command with pid, but other process info cut off.
+          self._print('pid: %s cmd: %s' %
+                      (line.split()[1], line[line.index(OUT_DIR):]))
       except:
         pass